Yes, they have 1.5 coils off the fronts, and 1 off the rears. Ride is VERY stiff, much more than Eibach, and alittle more than Intrax. They have great ride quality, that is, if the road permits. But as soon as you push the car into the turns the car sets and doesn't let go. Karson(greenbeanmtx) has been in my car while I took the car around TWS. It would probably be a good idea to ask him about the ride/handling, just from an outside source.
I have them on Tokico's though... Don't know how they will react with Koni, and I don't think anyone has ran that combo yet(atleast I haven't heard of it).
I'm still up in the air about pulling another .5 coil out. I'm running a 25'' dia tire now(225-50) and I have alittle more wheel gap. However, the car is lower than it was in that picture, i.e subframe to ground. However, I do plan on running some GenIII wheels with some 225-55's... like I said, still up in the air.
As far as cut coils and their differences... You have to remember that different year SHO's had different spring codes. This is probably one of the main reason for different drop heights.. But strut mounts are a close second.